Your Phone Flashcards
when you speak into your phone wht does it convert what you say into?
An electrical signal.
What is the electrical signal called that can have any value?
Analogue signal.
A digital signal is coverted from an ______________.
Analogue signal.
A digital signal takes the amplitude of the sound wave at different timesand converts it to binary numbers. What numbers to binary numbers use?
Only 0’s and 1’s.
What would 7 be in bits?
0111
What would 0001 be in a decimal number?
1
True or false:
An anologue signal on a graph can have any value giving the graph a curvy line
However,
A digital signal on a graph can only have 2 values and is in straight blocks on the graph.
True
When the digital signa is recieved at the right destination it converts it back into ____________.By sending the message through a digital signal it is a lot ___________.
- Analogue
* Clearer
How many bits(Binary digit (1’s or 0’s)) do you have to put together to get a byte?
8 bits.
If you have 1000 bytes how many kilobytes do you have?
1 Kilobyte.
1 megabyte is how many bytes?
Million.
A thousands million bytes is _________.
1 gigabyte.
Whe you call or download a song you are transferring _______.
Bits.
What is the lowest wave energy on the electromagnetic spectrum?and what is the highest?
- Radio waves.
* Gamma rays
Which has a shorter wavelength.Visible light or Ultra violet
Ultra violet (UV)
